Please wait while we load your page...


Latest Version [8.00202307241] Last Updated [Jul-24-2023]

PasswordSentry Highly Recommends NETbilling

Free Signup

PasswordSentry is a better website password protection system.

Improvement! PasswordSentry is a Better Idea!
Protecting 1000's of websites since 1999!

PasswordSentry (PS) is a website password protection enterprise software application that monitors logins to detect and block password sharing. PS employs cutting edge technology to block dictionary and brute force attacks: stop hackers from guessing passwords. Secure your website password protection with PasswordSentry!

Free Open Source Website Security App

Our mission is to provide an open source website security app that is secure, private and free for users around the world. PasswordSentry is FREE. Free to download, install, and use. No restrictions or limitations. Image by

PasswordSentrywebsite password protection feature Rated 9.25 out of 10 by our Clients!

PasswordSentrywebsite password protection feature Average Client uses PS on 2.7 Sites!

PasswordSentrywebsite password protection feature Average Client has been using PS for 7.7 years!

PasswordSentrywebsite password protection feature 83.19% of our Clients will use PS on more sites!

Updated Once Daily

Top 100 Clients

PasswordSentry packed with advanced features and functionality.

Easy to integrate in other apps to track logins using PS API.

Uses proprietary high precision GeoTrackingTM technology to detect and block password sharing.

Form-Based Authentication to block dictionary / brute force attacks via AuthForm (AF) Plugin.

Detect and block Proxy / VPN accesses via ProxyVPN (PVPN) Plugin.

Allow Single Sign-On (SSO) links between websites via InterLinking (IL) Plugin.

Monitor and throttle per-user bandwidth usage via BandwidthMonitor (BM) Plugin.

Block user access by IP and/or Country.

Growing list of Integration Plugins.

Easy to install via the web-based installer app, or request installation by our professionals via Jobber app in the PS Client Area.

Web-based admin control panel (PS AdminCP) to administer PS, and manage users.

Lifetime downloads on unlimited domains. PasswordSentry is NOT an IP counter application. PasswordSentry counts unique logins using geographical metrics. PS analyzes logins using PS::GeoTracking technology. Each user is geographically profiled. Their exact location is derived from their IP address: City, Region, Country, and Coordinates (Latitude and Longitude). User logins are then mapped, and the distance between logins analyzed for any given user. If a login is mapped outside the acceptable radius threshold (measured in miles, and defined via Control Panel Preferences), the user is suspended. This algorithm ensures that false positives (false suspensions) and false negatives (failing to identify password sharing) are negligible.


PasswordSentry packed with Testimonials from our clients!

See All Testimonials

Click on any Testimonial snippet to see the full Testimonial.
Blog Posts

Random Security Blog Articles

See All Blog Posts

PasswordSentry :: Security Blog Article Yes, it is strongly recommended to force HTTPS (HTTP Secure) for your website. HTTPS encrypts the communication between your website and the user’s browser, ensuring that sensitive data transmitted over the network remains secure. By forcing HTTPS, you ensure that … Read More
PasswordSentry :: Security Blog ArticleJon Phillips/Flickr, CC BY Nathalie Devillier, Grenoble École de Management (GEM) Understanding the legal discipline often seems abrupt for the uninitiated. Through my columns, I try to democratise the digital law, a subject that is not sufficiently taught and … Read More